Large-Scale Hollow-Core 3D Printing: Variable Cross-Section and Printing Features for Lightweight Plastic Elements Article Swipe
Matthias Leschok
,
Marirena Kladeftira
,
Y. J. Chan
,
Benjamin Dillenburger
·
YOU?
·
· 2024
· Open Access
·
· DOI: https://doi.org/10.1089/3dp.2023.0287
YOU?
·
· 2024
· Open Access
·
· DOI: https://doi.org/10.1089/3dp.2023.0287
Hollow-core 3D printing (HC3DP) proposes a new method for the production of lightweight, material-efficient thermoplastic 3D printed elements. This new fabrication approach promises material savings of 50-80%, while increasing the extrusion rate significantly (factor 10). This development pushes HC3DP to a similar fabrication speed as high-resolution concrete 3D printing. However, fundamental research on printing features enabled by this novel 3D printing approach is missing. Therefore, this article investigates printing with user-controlled bead dimensions (same nozzle, different size). It is showcased that the size of the extruded cross-section is determined by the positive air pressure used to inflate the beads. Multiple samples are printed, changing the layer height and width significantly without making changes to the hardware setup. Sections of 3DP samples are analyzed and the parameters of 3DP beads are determined. Furthermore, a set of bespoke 3D printed nozzles is introduced to subdivide the HC3DP beads into distinct areas. So far only regular beads, such as hollow tubes, have been used for 3D printing. Samples of those bespoke sections are analyzed to investigate their behavior when used for 3D printing. Finally, large-scale 3D printing experiments are conducted to investigate how printing features like bridging, cantilevering, or nonplanar 3D printing can be manufactured with hollow extrusion beads. In summary, this article provides insights into the fundamental 3D printing behaviors of HC3DP, showcases new design possibilities with bespoke and variable cross-sections, and finally proposes new research trajectories based on the findings presented.
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Metadata
- Type
- article
- Language
- en
- Landing Page
- https://doi.org/10.1089/3dp.2023.0287
- OA Status
- green
- Cited By
- 6
- References
- 22
- Related Works
- 10
- OpenAlex ID
- https://openalex.org/W4394837535
All OpenAlex metadata
Raw OpenAlex JSON
- OpenAlex ID
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https://openalex.org/W4394837535Canonical identifier for this work in OpenAlex
- DOI
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https://doi.org/10.1089/3dp.2023.0287Digital Object Identifier
- Title
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Large-Scale Hollow-Core 3D Printing: Variable Cross-Section and Printing Features for Lightweight Plastic ElementsWork title
- Type
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articleOpenAlex work type
- Language
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enPrimary language
- Publication year
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2024Year of publication
- Publication date
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2024-04-16Full publication date if available
- Authors
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Matthias Leschok, Marirena Kladeftira, Y. J. Chan, Benjamin DillenburgerList of authors in order
- Landing page
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https://doi.org/10.1089/3dp.2023.0287Publisher landing page
- Open access
-
YesWhether a free full text is available
- OA status
-
greenOpen access status per OpenAlex
- OA URL
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https://infoscience.epfl.ch/record/310833Direct OA link when available
- Concepts
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Core (optical fiber), Section (typography), 3D printing, Scale (ratio), Cross section (physics), Materials science, Engineering drawing, Composite material, Computer science, Engineering, Physics, Cartography, Geography, Astronomy, Operating systemTop concepts (fields/topics) attached by OpenAlex
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6Total citation count in OpenAlex
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2025: 5, 2024: 1Per-year citation counts (last 5 years)
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22Number of works referenced by this work
- Related works (count)
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10Other works algorithmically related by OpenAlex
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